One Reply to “Coffee!! Seldom-seen world of liquid nitrogen

  1. 1
    bornagain77 says:

    That’s Cool! mmm,,, I mean That’s Cold! 🙂

    more cool stuff with super-cold stuff:

    Boaz Almog: The levitating superconductor – video
    https://www.ted.com/talks/boaz_almog_levitates_a_superconductor

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